package com.bitdf.txing.common.valid.anno;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

/**
 * 自定义合法性校验器
 */
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Object> {

    private Set<Integer> set = new HashSet<>();
    //初始化方法
    @Override
    public void initialize(ListValue constraintAnnotation) {

        int[] vals = constraintAnnotation.vals();
        for (int val : vals) {
            set.add(val);
        }

    }

    //判断是否校验成功

    /**
     *
     * @param value 需要校验的值
     * @param context
     * @return
     */
    @Override
    public boolean isValid(Object value, ConstraintValidatorContext context) {
        if (value == null) {
            return true;
        }
        if (value instanceof Byte) {
            value = ((Byte) value).intValue();
        }
        return set.contains((Integer) value);
    }
}
